Although weblogs can be as different as any web pages they usually share some features. These are some of the common features of WordPress when used as a blogging platform.

  Posts, Entries or Articles

The main part of the blog;
 Blogs consist of a series of articles, often called posts, usually displayed in reverse chronological order, the most recent at the top. This is usually the main content of the blog. The entries may be organised into categories with the facility of opening only entries in a particular category.

Pages

Pages, like the one you are reading now, stand outside the chronological flow of posts. They do not have categories and tags.  Pages are used to provide extra information, for example about this blog, on a standard blog. Pages may be used extensively on sites that  are not focused on the latest updates, School Websites, or Resource blogs for example.

  Comments

Reading blogs can be more like a conversation than a lecture. Readers can usually comment on articles in a blog. You can read the comments of others and join in. Bloggers often comment back.

 Recent Posts, Recent comments

Blogs often have lists of recent posts and comments on a sidebar, linked to individual copies of the entry with the comments.

Archives, Recent, Tag-Clouds

Blogs usually offer various ways to view the entries. Archives usually consist of entries organised into monthly or weekly pages. Tag-clouds are lists of tag (or key) words displayed so that more frequently used words are bigger, clicking on a word in a tag cloud will lead to a list of posts containing that word.

  Links, blogrolls, friends

Most blogs offer a various links to similar blogs, sites or just friends. Many use online services such as furl or del.icio.us to collect links as they browse the web automatically adding them to these lists.
One of the most important features of weblogs is that they are updated frequently. Readers may wish to check and read blogs regularly, perhaps by storing the urls in your browser’s favourites.

  RSS Feeds

When reading weblogs you will see a lot of graphics like these: 
These link to RSS (Rich site summery or Really Simple Syndication) feeds. RSS feeds are XML files that contain much of the same information as the entries on the weblog in a special format that makes the information on them easy to share. One weblog can display the RSS feed from another and more. RSS feeds also let you view blogs in a different way.